Posted By John
Roman Numerals

ROMAN NUMERALS ARE often used to suggest importance or timelessness. It’s also used in situations where an alternate numbering system is useful for clarity. You’ll find it used for the Commonwealth Games and of course the Olympics.

Use the handy converter below for decimal numbers from 1 to 9999
and Roman Numerals with not more than 21 characters.

 Enter a decimal number and press the button below it OR Enter a Roman Numeral and press the button below it
 Decimal Number EQUALS Roman Numeral

## Help Writing Roman Numerals

When a smaller number comes before a larger number, the smaller number is subtracted.
example:   IX = 10 -1 =  9

When a smaller number follows a larger one, add the two together.
example:   XI = 10 + 1 = 11

When a letter is repeated, add them together
example:   XX = 10 + 10 = 20     or     XXX = 10 + 10 + 10 = 30

Never repeat the letters VL and D. Use XC and M instead.
example:   for 10 use X not VV     for 100 use C not LL     for 1000 use M not DD

A bar across the top of the letter increases the number 1,000 times.
example:   V = 5     V  = 1,000 times 5 = 5,000

When a value can be represented with different combinations of letters, use the shortest notation.
example:   55 = LV     and NOT  XXXXXIIIII     and NOT  XXXXXV

## Roman Numerals Chart

 I = 1 II = 2 III = 3 IV = 4 V = 5 VI = 6 VII = 7 VIII = 8 IX = 9 X = 10 XI = 11 XII = 12 XIII = 13 XIV = 14 XV = 15 XVI = 16 XVII = 17 XVIII = 18 XIX = 19 XX = 20 XXX = 30 XL = 40 L = 50 LX = 60 LXX = 70 LXXX = 80 XC = 90 C = 100 CC = 200 CCC = 300 CD = 400 D = 500 DC = 600 DCC = 700 DCCC = 800 CM = 900 M = 1,000 MD = 1,500 MCM = 1,900 V = 5,000 X = 10,000 L = 50,000 C = 00,000 D = 500,000 M = 1,000,000